The Login Function must be used on some
(but not all) Control Modules before you can Recode or change Adaptation
values. On others, it "enables" certain features like cruise control.
Valid Login codes can be found in the Factory Repair Manual for your
car. If the label file for the controller contains suggestions, they may
appear in a balloon.

If working on an
Immobilizer, select [Use 7-digit
PIN/SKC] to enter a 7-digit Secret Key Code.

Balloons:
VAG-COM can show Login "charts" when appropriate information
is available in a Label File for the control module in
question. The balloon will appear when the mouse cursor is
hovered over the Enter Login Code field.

Use the[Do It!] button to save the
Login and return to the Select Function Screen.

Use the[Cancel] button to cancel
the Login and return to the Select Function Screen.

The following warning
appears in the upper right corner of the screen if a session is
disconnected after you have done a Login. You will need to do another
Login.

The most common
cause of this is the use of an incorrect login code or a 7-digit
PIN/SKC based on an incorrect Immobilizer ID or incorrect data
entered in the 7-digit dialog.